[time-nuts] Batteries [WAS: Z3801A gps week rollover]

Charles Steinmetz csteinmetz at yandex.com
Fri Sep 9 18:25:57 EDT 2016


Mark wrote:
> You might want to try some lithium AA cells.  They start out around 1.65V.  They are MUCH less prone to leakage than any "alkaleak" battery and have a very long shelf-life (i.e. good for low drain memory backups).

Not only that, they have considerably greater energy density and a much 
flatter discharge curve than alkalines, and are better at high discharge 
rates as well.  I haven't used alkaline AA, AAA, or 9-volt batteries for 
more than 10 years now.  One of the major mfrs at one time made lithium 
"C" cells.  I still have a stash of them in cold storage, but I haven't 
seen them for sale for some time.  I looked for lithium "D" cells, but 
never found any.

NB:  We're (at least, I'm) talking about lithium *primary* batteries, 
not rechargeable lithium batteries.  The usual chemistry is LiFeS2.  For 
data, see:

<http://data.energizer.com/PDFs/lithiuml91l92_appman.pdf>

Best regards,

Charles





More information about the time-nuts mailing list